The Red King Crab’s scientific name is called Paralithodes Camtschaticus. The crab is the ancestor of the Hermit Crabs, and as well as many other crabs (A-Z Animals). The red king crab both live in Alaska, the Northern Pacific Ocean, the Sea of Japan, Northern Kamchatka, the west coast of North America, southern of Queen Charlotte Island, and the Southeastern Bering Sea. The adult red king crabs live in the Intertidal Zone and they prefer mud and sand. The king crab lives underwater on the sand, and have a lifespan for 20-30 years (Animal Diversity, Alaska).
Red king crabs have dark red bodies and have a fan-shaped tail. These crabs have five sets of appendages. The red king crab’s first two appendages are the pincers, and the rest of the
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Females weigh about 10.5 lb, while males weigh up to 24 lb. Their appendages are roughly five feet long. Red king crabs were historically the most important shellfish species in Alaska. Female king crabs lay thousands of embryos under tail flap for about a year. When the embryos hatch, they developed as swimming larvae. After the embryos hatch, they feed on plants and animals plankton for several months, they have few body changes. The larvae rests on the bottom of the ocean and they molt into nonswimmers, and then look like king crabs. Sadly, they are only as big as a dime (Alaska).
Alaska is famous for its red king crabs that are very expensive. In Alaska, fishers caught nearly 20 billion pounds of red king crabs that was worth 1.6 million dollars. This made red king crabs the second most valuable species to the fishers. There was a statewide harvest for red king crabs for 183 million pounds at 235 million dollars. When one searches up king crabs, there will be prices for red king crabs that cost 90 dollars and up, which proves that red king crabs are expensive (Bahrs
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They lay about 50,000 to 500,000 eggs. (Fish Watch). Females attract males to mate by the chemical that is released after its eggs have hatched. The male holds on the female and claps her until the female molts, that produces eggs. They continue to be connected for up to 7 days. After the process of molting, the male uses his fifth pair of legs to open the spermatophores over the female’s opening. The eggs are attached to the female’s pleopods that is under the abdomen. The eggs will hatch after approximately a year (Animal Diversity).
Red king crabs tend to mate at deeper waters. The crab’s skeleton is the shell, it has to molt its shell in order to grow. The Juveniles molt many times in their first few years, but less often when they mate. Adult females have to molt to mate, but males do not have to molt because they frequently pass a molt and to keep the same old shell. These red king crabs are very healthy
Because of its size and abundance, T. californicus is commonly regarded as the insect of the sea. This creature is generally very small, from 1-3 mm in size as adults. They are cylindrically shaped, and have a segmented body (head, thorax, abdomen) though no noticeable division between body regions (Powlik 1966). Each segment of the body has a pair of legs. They use their 'legs' to propel themselves through the water in short rapid jerks. They have 2 pairs of long feathered antennae, a chitin us exoskeleton and a single eye in the middle of their head, this simple eye can only differentiate between light and dark.
The picture above shows the vast difference that there can be in animals, to the right is Emerita Analoga (sand crab), and to the left is Zalophus Californianus (California Sea Lion). The sand crab is an invertebrate while the seal is a vertebrate and mammal. Invertebrates make up 90% of all an...
...ral reefs and the native wildlife is a step alongside taking action to control the populous number of lionfish, let it be a small or big measure.
However, the Boiling Crab has already penetrated the market in California with the proper level of price. The restaurant business cannot charge the price far more different than the others because in the same level of restaurant, the clients will focus on the range of price before choosing it. Moreover, the Boiling Crab is the seafood, so the market price of seafood, such as shrimp, lobster, crab is very fluctuate depended on how difficult to find each item at that time. As you can see from the Boiling Crab menu, these items will be charged according to the market price at that time. Referring to the appendix 1, I compare price of food from many restaurants with the same kind of food, but it turns out that the level of price is pretty much the same between the Boiling Crab and the Kickin’crab.
Blue crabs have the highest value of any Chesapeake Bay commercial fishery; in 2000, the blue crab harvest was valued at a staggering $55 million (Blue Crabs – Chesapeake Bay Program). For Maryland locals, the importance of crabs during the summer months is bigger than any other issues; summer days are spent at picnic tables picking away at the hard shells of the steamed morsels. During these months, commercial fisherman are up before the sun rises, riding along checking their lines and baskets in the bay in hopes of a good yield of the crustaceans to bring back to sell later that day. In fact, an estimated one third of the nation’s catch of blue crabs come directly from Maryland’s own Chesapeake Bay (Blue Crabs – Chesapeake Bay Program).Therefore, sustaining the population of crabs is essential in the success of the businesses that rely on the income from selling them, and also to the people who consume the crabs frequently. At the same time, the constant pressure on harvesting the crabs for income has created an issue. Since the early 90’s, yield of crabs has decreased, resulting in an increase of efforts to meet the demands of the business of co...
The Longnose gars are found all over the eastern united states and grow to be a rather big fish. Their scientific name is Lepisosteus osseus and they are members of the gar family (Groves). Gars have been around for a very long time, some said even back to prehistoric times. However even with them being around for a long time, there is still little research done on them because they are considered pests to many fisherman. According to the Chesapeake Bay Program This is because “most fisherman consider gars to be a nuisance because they damage fishing gear and eat more important fish species” (Chesapeake Bay Program, 2012).
...rough an attempt to overfish the species is unlikely due to their ability to quickly recover (Barbour, 2011). A substantial reduction of adult abundance will require a long-term commitment and may be feasible only in small, localized areas where annual exploitation can be intense over multiple consecutive years (Barbour, 2011).
Although it’s hard work, they make great pay. On average, a Red King Crab, weighs around 6-10 pounds. And they get a whopping $4.50 per pound. According to FVNorthwestern.com, fisherman on the northwestern, including Sig Hansen, making anywhere from $34-$47 PER Crab! When you think about it, that all adds up. Over time they make a lot of money. It’s a dangerous job, but it’s worth the pay, if you’re brave enough.
The article begins in part 1 by explaining the origin of the red lionfish’s invasion 20 years ago. They first occurred in south Florida and also the Caribbean and are spread out from a very lengthy distance as far down as north eastern
To start off, the horseshoe crab lived 200 million years before dinosaurs. What’s astounding is that while dinosaurs have become extinct, the horseshoe crab is still alive and well today (Horseshoe Crab:Saint Louis Zoo). Next is that it might not seem like it, but this critter is actually a predator. The crab likes to feed on things such as small clams, crustaceans, worms, algae, and other animals (Steel). Furthermore this animal is also known as the king crab. Finally the male horseshoe crab is actually shorter than the female the crab. The male is about 14-15 inches long from head to tail, while the female is measures in to be 18-19 inches long (Horseshoe Crab
Once the juveniles have chosen their foraging area, they begin to mature. When they reach sexual maturity, loggerhead adult have a long migration towards a designated nesting beach (Abecassis et al. 2013). These migrations can take up to 2 to 3 years because they are long-distance travelers migrating across different climatic zones (Lamont & Fujisaki 2014). Their return to these areas depends on foraging success. The age of maturity of loggerheads can be different for every turtle especially since they are long lived, but estimates range between 10 and 45 years (Abecassis et al.
Mud Crabs use chemical communication cues to judge predator threats. By analyzing the qualitative and quantitative properties of the chemical cues given off by predicators, crabs are able to determine certain characteristics about their predators that will help them assess the levels of threat associated with that particular predator. Qualitative chemical cues allows crabs to tell the difference between different predators and also distinguish between different predator diets. Hill and Wissburg’s (2014) experiment showed Mud Crabs were less prominent on reefs where Blue Crabs ate a diet consisting mostly of Mud Crabs rather than reefs where Blue Crabs fed on oysters instead. Quantitative differences in chemical cues allow prey to determine the intensity of predator threat.
When people walk along the beach, you may cross upon a bunch of creatures that is trying to crawl toward the vast ocean. These creatures are sea turtles. Sea turtles are large marine reptiles that are cold-blooded vertebrates and have leathery or bony flippers and shell (Lutz and Musick, 1996). They are aquatic reptilian creatures that has wide spectrum of coloration ranges between yellow, greenish, and black depending on the type of sea turtles. They are from the kingdom of Animalia, class of Reptilia (Matthews, 1990). The earliest known sea turtles appear in the fossil record in the Late Jurassic period, 208 to 144 million years ago. Scientists believe that modern sea turtles are derived from marsh-inhabiting ancestors that lived during the Late Triassic period (seaworld.org, 2001). Therefore, for millions of years, sea turtles were around since the dinosaur age, and that today they still exist and can be found in the world, which makes sea turtles one of the Earth’s ancient species. They can be found in all warm and temperate water throughout the world. Their habitats are located in the bay, shallow, coastal waters, lagoons, and open sea (Lutz and Musick, 1996). However most sea turtles undergo a long migration between their feeding grounds and the beach where they nest. Unlike other turtles, sea turtles cannot retract their head or legs back in the shells. Depending on the sea turtles, they can be carnivorous, herbivorous, or omnivorous. Sea turtles feed on shrimps, jellyfish, sponges, and vegetation. There are total of seven species of sea turtles: leatherback sea turtles (Dermochelys coriacea), green sea turtles (Chelonia mydas), hawksbill sea turtles (Ertmochelys imbricate), flatback sea turtles (Caretta caretta), Kemp’s...
When the colony becomes well established, the queen begins to lay some eggs that develop into queens and males. It takes a few years before a colony becomes large enough to send out winged males and young queens to start new colonies. The cycle will now begin all over again. Nests come in all shapes and sizes. One tropical species built a nest that extended forty feet below the surface of the ground.
Males are usually larger than females, but there are no obvious physical differences that mark their sexes. There is only one very slight difference in the pattern of scales in front of the cloaca. Though it is difficult for researchers to identify the sexes, the Komodos seem to have no trouble. They mate between the months of May and August. The female lays about 30 eggs and the incubation cycle is roughly 9 months (Benyus, 1992).